A simple nonautonomous chaotic circuit with a periodic pulse-train input

This paper presents a simple nonautonomous circuit with a periodic pulse-train input. If the input does not exist, the circuit exhibits either equilibrium attractor or hard oscillation. If a periodic pulse-train input is applied, the circuit exhibits interesting chaotic and periodic attractors. The circuit behavior can be analyzed by a mapping procedure based on a 1-D return map focusing on the moments when the input is applied. Using a simple test circuit, we can verify typical phenomena in the laboratory.